Office (OLE) / .XLSX malware analysis — malicious · cbd6573c735db72f

MALICIOUS

Office (OLE) / .XLSX

138.0 KB Created: 2022-02-09 09:48:26 Authoring application: Microsoft Excel

MD5: 4e5ed9faf848ec27d5e5f6681d3db45c SHA-1: ae384b999e38e7ef70bf245897feae5faa081e43 SHA-256: cbd6573c735db72f518a7e1bb5c3e77d2f6a72e518a0187c3eecd19b73f2e703

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The sample is a macro-enabled Excel file that triggers a Workbook_Open event. This event executes VBA code that attempts to download and execute a VBScript payload from a hardcoded URL. The script also attempts to create a batch file and execute it. The ClamAV detection name 'Doc.Downloader.EmotetRed02220' further suggests a downloader functionality.

Heuristics 6

ClamAV: Doc.Downloader.EmotetRed02220-9938909-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02220-9938909-0
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `541f1bc8dabb3251f47f10b21549dcd65cec57a0deb8e5a12f7af2215c6c21f1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	52433 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.